2. Cholera is stalking Haiti’s southern peninsula in the aftermath of Hurricane Matthew.

The disease has killed 10,000 people since 2010, when scientists say it was introduced by U.N. peacekeepers after the earthquake. Now it is ravaging remote areas where clean water was already hard to find before the storm.

It’s an effort to fill what officials say is a huge void in official data. (The most comprehensive records on police shootings have come from databases built by news organizations.)

____

Image

CreditMeridith Kohut for The New York Times

4. President Obama issued a sweeping directive on Cuba and loosened many trade restrictions. The move formalizes the changes announced two years ago — and sidesteps Congress, where Mr. Obama’s call to lift the embargo faced opposition.

Among the changes? You can now bring unlimited Cuban rum and cigars back to the U.S. for personal consumption.

9.For your weekend planning:“Kevin Hart: What Now?” is in theaters, and our critic said most of it was pretty-to-very funny, while also acknowledging that the comedian is basically “critic-proof.”

Our small-screen experts recommend the comedian Kyle Kinane, the British show “The Durrells in Corfu” and the movie “Carol,” above, which is streaming on Showtime.

____

Image

CreditBuddhika Weerasinghe/Getty Images

10. Finally, Part II of our discussion about eating fish. On Thursday we noted that eating fish is good for you. But a reader asked about the levels of mercury. Good point.

Mercury can be harmful for pregnant women and small children, but experts say fish remains preferable to red meat. And you can avoid mercury by skipping varieties that accumulate high levels of it: shark, swordfish, king mackerel and tilefish.